keywords($args) Returns the map of named arguments passed to a function or mixin that takes a variable argument list. The

blue($color) Gets the blue component of a color. Calculated from HSL where necessary via

counters($args...) This function only exists as a workaround for IE7‘s

adjust_color($color, [$red], [$green], [$blue], [$hue], [$saturation], [$lightness], [$alpha]) Increases or decreases one

@while The @while directive takes a SassScript expression and repeatedly outputs the nested styles until the statement

@warn The @warn directive prints the value of a SassScript expression to the standard error output stream. It’s useful

selector_extend($selector, $extendee, $extender) Returns a new version of $selector with $extendee

hue($color) Returns the hue component of a color. See

@for The @for directive repeatedly outputs a set of styles. For each repetition, a counter variable is used to adjust

unitless($number) Returns whether a number has units.